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Java > Open Source Codes > org > mortbay > jetty > servlet > SessionContext


1 // ========================================================================
2
// $Id: SessionContext.java,v 1.4 2004/05/09 20:32:27 gregwilkins Exp $
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// Copyright 1996-2004 Mort Bay Consulting Pty. Ltd.
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// ------------------------------------------------------------------------
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ========================================================================
15

16 package org.mortbay.jetty.servlet;
17 import java.util.Collections JavaDoc;
18 import java.util.Enumeration JavaDoc;
19
20 import javax.servlet.http.HttpSession JavaDoc;
21 import javax.servlet.http.HttpSessionContext JavaDoc;
22
23 /* ------------------------------------------------------------ */
24 /**
25  * Null returning implementation of HttpSessionContext
26  * @version $Id: SessionContext.java,v 1.4 2004/05/09 20:32:27 gregwilkins Exp $
27  * @author Greg Wilkins (gregw)
28  */

29 public class SessionContext implements HttpSessionContext JavaDoc
30 {
31     /* ------------------------------------------------------------ */
32     public static final HttpSessionContext JavaDoc NULL_IMPL = new SessionContext();
33
34     /* ------------------------------------------------------------ */
35     private SessionContext(){}
36     
37     /* ------------------------------------------------------------ */
38     /**
39      * @deprecated From HttpSessionContext
40      */

41     public Enumeration JavaDoc getIds()
42     {
43         return Collections.enumeration(Collections.EMPTY_LIST);
44     }
45
46     /* ------------------------------------------------------------ */
47     /**
48      * @deprecated From HttpSessionContext
49      */

50     public HttpSession JavaDoc getSession(String JavaDoc id)
51     {
52         return null;
53     }
54 }
55
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